Display Panel Photo Spacer Insertion for Thin Cell Gap
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Solution Overview
Problem
Existing display technologies face challenges in achieving a thin cell gap without reducing the height of photo spacers, which is crucial for fast response times, especially in Virtual Reality applications, as the thin spacer films can break during fabrication.
Innovation Solution
The display panel design incorporates an array substrate with at least one first hole on its inner surface, allowing a first photo spacer to be partially inserted into the hole, maintaining a thin cell gap without reducing the spacer height and preventing film breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the height of photo spacers is reduced to achieve a thin cell gap, then the response speed is improved, but the photo spacer film may be broken during fabrication
Solution Approach 1:
The patent transitions from controlling cell gap thickness by reducing photo spacer height (one-dimensional approach) to achieving thin cell gap by inserting photo spacers into holes formed in the array substrate (three-dimensional approach). This dimensional change allows maintaining adequate spacer height for fabrication reliability while achieving the desired thin cell gap for fast response.
Solution Approach 2:
The patent divides the cell gap control mechanism into two parts: holes are formed in the array substrate at positions where photo spacers will be inserted, and photo spacers are inserted into these holes to define the cell gap. This segmentation allows independent control of spacer height (for fabrication reliability) and cell gap thickness (for response speed).
2Manufacturing precision
If the cell gap is made thin to improve response speed, then the display performance is improved, but the photo spacer film becomes vulnerable to breaking
Solution Approach 1:
Holes are formed in the array substrate before photo spacer insertion, establishing the precise positions and depth requirements in advance. This preliminary action enables subsequent photo spacer insertion to achieve accurate cell gap control while maintaining adequate spacer height for easy fabrication.
3Duration of action of moving object
If photo spacer height is reduced to achieve thin cell gap, then the display panel response time is improved, but the photo spacer cannot maintain its structural integrity
Solution Approach 1:
Photo spacers are nested into holes that are pre-formed in the array substrate. This nesting structure allows the photo spacer to be positioned precisely at the required depth to create a thin cell gap, while the surrounding hole structure provides structural support that prevents the thin spacer film from breaking during fabrication and operation.
Data Source
AI summary
A display panel and a display panel are provided. The display panel comprises an array substrate having an inner surface disposed with at least one first hole; a color film substrate arranged opposite to the array substrate; and a first photo spacer disposed between the array substrate and the color film substrate. The inner surface of the array substrate is arranged facing an inner surface of the color film substrate, and the first photo spacer is at least partially inserted into the at least one first hole disposed at the inner surface of the array substrate.